Correcting-machine.



M. M. McINTYRE & C. F. SCHULTIS.

CORRECTING MACHINE APPLICATION FILED AUG9, i915.

Patented July 17, 1917.

M. N!- McINTYHE &C. F. SCHULTIS.

CORRECTING MACHINE.

a APPLICATION FILED AUG-9. 1915; 1L; Patented 11113717, 1917.

3 SHEETS-SHEET 2- M. McINTYBE & c. F. SCHULTIS.

" comzscrme MACHINE. APPLICATION FILED AUG-9, I915- 3 SHEETS-SHEET 3- g ,I"//////// w Patented July 17, 1917.

UNITE @Trhh FATE @FIFF.

MICHAEL III. MOINIYRE AND CHARLES F. SCI-EZIJ'L'IIS, OF CLEVELAND, OHIO, ASSIGNORS. BY MESNE ASSIGNMENTS, T0 TI-IE STANDARD PARTS COMPANY, OF CLEVELAND,

CORRECTING-MACHINE.

To all whom it may concern:

Be it known that we, MICHAEL M. Mo- INTYRE and GHAnLns F. SoHUL'rIs, citizens of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Correcting-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates generally to the manufacture of leaf springs and more particularly to a machine for correcting certain defects which sometimes exist in the shaping of the spring.

Occasionally a leaf spring in the course of its manufacture receives a slight lateral curve or twist due to some uneven distribution of metal, or other cause, and the object of the present invention is to provide a'simple and efficient machine by means of which such springs can be quickly and easily corrected and brought back to a perfectly shaped spring from end to end without impairing any of the usual qualities of the spring previously imparted thereto, and another object of the invention is to provide a machine of this character which can be quickly and easily adjusted to accommodate diiferent thicknesses of spring, and a still further object is to provide a machine of this character which will be under the control of the operator at all times.

With these objects in view and certain others which will become apparent as the description proceeds, the invention consists in the various novel features of construction and combination hereinafter fully described and pointed out in the claims. 7

In the drawings forming a part of the specification, we have illustrated one embodiment of our inventive idea, but it will be understood that certain changes and modifications can be made within the scope of the claims without departing from the broad principles of our invention.

Figure 1 is a face view of a machine embodying our invention; Fig. 2 is a side elevation of the same; Fig. 3 is a detail section, partly in elevation, illustrating the shaping or correcting rolls and the manner of supporting and adjusting the upper roll; Fig.

" tion being inserted from one side of the up 4L is a sectional. plan View on the line H Specification of Letters Patent. Patented July I7, 1917.

Application filed August 9, 1915.

Serial No. 4 1,516.

of Fig. 2; Fig. 5 is a section on the line 55 of Fig. 2; and Fig. 6 a sectional view on the line 6-6 of Fig. 3. i

. In the practical embodiment of our invention, we employ a base 10, ofsuitable size and shape, and mounted thereon are the front and rear upright standards 11 and 12 which are connected at their upper ends by suitable tie-rods 13, said standards being suitably spaced by sleeves 14L upon said tierods.

A rotary shaft 15 is journaled in the uprights 11 and 12 and is provided with a driving gear 1.6 on the rear end thereof which gear meshes with a pinion 17 mounted upon the shaft 18 journaled in a bracket 19 bolted to the base, and receiving power from any suitable source such as a pulley or gear.

Spaced above the rotary shaft 15, is a square shaft 21, the forward end of which projects through a rectangular opening in the upright 11, this square shaft being supported and adjusted in a manner hereinafter explained.

A shaping or correcting roll 22 is mounted upon the forward end. of the square shaft 21, and av mating roll 23 is fixed to the forward end of the rotary shaft 15. The roll 23 is keyed to the forward end of the rotary shaft 15 by a suitable key 24 and is held. against longitudinal movement by means of the nut 25 provided with periph eral openings to receive a spanner wrench.

The roll is provided. with an antifriction bearing 26 in order to reduce friction to a minimum and is held upon the end of the shaft 21 by means of the nut 27.

The rolls 22 and 23 taper rearwardly to accommodate springs which are slightly concaved, as shown, and it will be under stood that various shapes of rolls may be employed, dependent upon the cross section of the spring to be corrected.

In order to maintain the fixed shaft and its roll in the proper relative positions and also to provide for easy adjustment, we employ a hanger shaft 30 which is passed transversely through the forward upright 11 and is constructed with an eccentric portion 31, which occupies the open space in said upright, said shaft with eccentric porthreaded ring 36 screwed into an internally threaded boss 36 produced upon'the shaft 21, and 'this ring'36-has an inwardly projecting flange 36? which overlaps the sectional-ring 35 and holds the same in engagement withtheball 33, thereby providing ,a-"perfectly secure connection which is capable of universal movement;

Th'esh'aft-30 carries a graduated washer 37 which is-adapted to coact with a pointer 38 arranged upon the upright adjacent to said washersothat the adjustment of the shaft canbe graduatedQand it willbe understood that by turning the shaft one or more degrees in'either; direction, the shaft 21 and itsroll are raised or lowered, by the change inposition of the eccentric portion 31 upon which is mounted the hanger supporting said' shaft2l.

The shaft 30 is provided with nuts 39 at eachlen'd and the projecting end 40*is'made square to receive a wrench so that saidshaft can be *adjusted' and then held fixed while theynuts'39 are'being gtightened up to secure the-shaft in its adjusted position.

The shaft 21 has a cross-pin 28, the ends ofwhich" are trunnioned in plates 29 sliding in therecessed portion ofjthe upright 12 p and these latesare held in position during such movements by means of the overlapping strips 29 secured to theforward face'of" the upright 12. This arrangement permits the square shaft 21to be adjusted vertically so. as to move the roll 22 toward or away fromtthe driving 'roll23 carried upon the rotary shaft 15.

For the purpose -ofraising and lowering thesquareshaft2l', we employ toggle arms 41 which are pivotally connected 'attheir upper ends to th'eshaft 21' and'at their lower ends are connected; to toggle armst2, the

, lowerends ofsaid'arms being-pivotally connected to a bracket-42 projecting forwardly from the-upright 12; At the-knuckle or joint of the toggle armsA-l and 12, we connect a toggle link 13 which is also connected to a bell crank' l l pivoted in a bracket 45,

formed upon the upright 11, saidbell crank ldeing operated by a pull 7 rod 16 which is dividedas shown at 417 and conn'ectedat its lower ends to the foottreadle48; a coil spring 1 19 being interposed between a fixed bracket an'd'a collar 'upon the pull rod for thepurpose oflifting the same and I break.-

ing. the toggle when the foot treadle is released,it being obvious that by pressing down upon the foot treadle the toggle is straightened, which raises the rear end of the square shaft 21 and throws the forward end carrying'the roll 23, down'toward the rotary shaft with its roll so as to bind upon the leaf spring 50 which has previously been placed between the opposed portions of the rolls 22 and 23; the shaft 21 rocking or vibrating upon the ball 33 of the depending hanger, there being just suflicient movement of the shaft 21 to bringthe roll 22 into proper position with reference to the roll 23 and move the sameout again after. the operation has been completed.

The engagement of the. rollss22 and 23 upon the leaf spring 50 causes. the spring totravel along between therollswhile being subjected to pressure and in this manner the spring is straightened or corrected or reshaped so that when aspringwhich is slightly curved or twisted orwbent is passed between the rolls. from i one. end to the. other, it emerges from between therolls av perfectly straightened or corrected spring. with the metal properly distributed. to producethe best results.

In. order to maintain the spring-perfectly true while traveling'between the rolls, we.

provide aface plate 51.fastened1tothe forward upright 11 and against which the spring bears, and in order .to provide against undue wear of this. face plate, we. arrange hardened steel rollers-52..at oppositely; disposed pointsinthe plate 51. and against which the spring bears uponv opposite sides of the rolls 22 and-23 as most clearly shown in Fig. 1, suitable openings 53- beingproduced ini'the face plateto permit insertion ofthe hard steel vrollers52. These rollers receive the wear. orfrietion incidental to the travelof the spring, and thus save the wear or friction upon the faceplate.

A machine constructed. as herein shown and described, has been foundv highly. eflicient for the correction of the defects hereinbefore referredto, and in addition to its simplicity and durability, is exceedinglyquick and easy; in operation.

Having. thus described our invention, whatwe. claim is 1. In. a: machine of the character described, the combination .with a contact plate having, .an .openingitherein; of-a pair of rolls: operating within said openlng, the plane of airollfixed thereon, of anon-rotatable shaft.

having. a- 1Oll I11OV1zblG thereon, and a contact plate arranged in. a planeat right angles to the axes of said rolls, said plate being'in alinement with the rear portions of said rolls and adapted to serve as a bearing plate upon opposite sides of said rolls.

3. In a machine of the character described, the combination with a rotary shaft having a roll fixed thereon, of an adjustable vibratory shaft having a roll rotating thereon and adapted to cooperate with the first mentioned roll, and a bearing surface arranged at right angles to the axes of said rolls.

4. In a machine of the character described, the combination with a rotary shaft having a roll fixed thereto, and means for operating said shaft, of a shaft arranged in substantially parallel relation to the rotary shaft, means for adjusting the position of said second shaft, means for vibrating the same transversely, and a roll adapted to turn upon the end of said second shaft, said roll being adapted to cooperate with the roll fixed upon the rotary shaft.

5. In a machine of the kind described, the combination with a pair of rolls adapted to feed a strip of metal therebetween, of a contact surface arranged in a plane at right angles to the axes of said rolls, said contacting surface being in alinement with the rear portions of said rolls and upon opposite sides of said rolls.

6. In a machine of the character described, the combination with a rotary shaft having a roll fixed thereon and means for operating said shaft, of a shaft suspended intermediate its ends and having a roll rotating upon the end of said shaft, said roll being adapted to cooperate with the roll upon the rotary shaft, means for vibrating said suspended shaft, means for adjusting the point of suspension, and a bearing surface arranged at right angles to the axes of said rolls.

7 In a machine of the character described, the combination with a rotary shaft and means for operating the same, and a roll fixed upon the forward end of said shaft, of a second shaft spaced above the rotary shaft and substantially parallel therewith, a roll rotating upon the forward end of said second shaft, an adjustable hanger for suspending said second shaft intermediate its ends, operating means for vibrating said second shaft together with means for maintaining said shaft in its normal position.

8. In a machine of the character described, the combination with a rotary shaft and means for rotating the same, said shaft having a roll fixed upon the forward end thereof, of a second shaft spaced above the rotary shaft and a roll rotating upon the forward end of said shaft, a suspending shaft, an adjustable hanger arranged thereon, and adapted to suspend said second shaft intermediate its ends, toggle arms connected to said second shaft adjacent its rear end together with means for operating said toggle arms to vibrate said second shaft, for the purposes specified.

9. In a machine of the character described, the combination with a rotary shaft having a roll fixed upon its forward end, and means for rotating said shaft, of a soc- 0nd shaft spaced above the rotary shaft and having a roll rotating upon its forward end, a hanger for suspending said second shaft, an adjustable suspending shaft upon which said hanger is mounted, toggle arms con nected with said second shaft and means for operating toggle-arms, and a bearing surface arranged at right angles to the axes of the rolls as set forth.

10. In a machine of the kind described, the combination with a pair of rolls adapted to feed a strip of metal therebetween, .of anti-friction rolls arranged upon opposite sides of said rolls, and means for carrying said anti-friction rolls, the surfaces of said anti-friction rolls being at right angles to the axes of said strip feeding rolls.

11. In a machine of the character described, the combination with a pair of rolls, of a contacting plate arranged at right angles to the axes of said rolls, and oppositely disposed bearing rolls mounted within the contacting plate as set forth, said plate being in irlinement with the rear portions of said rol s.

12. In a machine of the character described, the combination with a rotary shaft and a roll thereon of a second shaft having a roll loosely mounted thereon, a suspend,- ing shaft having an eccentric portion, a hanger mounted upon said eccentric portion and having a depending portion terminating in a ball, means for universally connecting said ball and second shaft, together with means for vibrating said second shaft.

13. In a machine of the character described, the combination with a rotary shaft carrying a roll, of a non-rotatable shaft spaced above the rotary shaft and having a roll movablenpon its forward end, means for suspending said upper shaft, and means for raising and lowering the roll upon said shaft by vibrating said shaft.

14. In a machine of the character described, the combination with a rotary shaft having a roll at its end, of a non-rotatable shaft spaced above the rotary shaft, a roll movable upon its forward end, an adjustable hanger shaft, a hanger thereon universally connected to said spaced shaft, and means connected to said shaft for vibrating the same, whereby the movable roll is moved toward and away from the roll on the rotary shaft.

15. In a machine of the character described, the combination with a rotary shaft carrying a roll, of a non-rotatable shaft spaced above the rotary shaft and having aroll movable upon its forward end, means forsuspending said upper shaft, means for raising and lowering the roll upon said shaft by vibrating said shaft, and a contacting plate arranged at right angles to the axes of the rolls and in alinement with the rear portions of said rolls.

16. In a machine of the character described, the combination with a rotary shaft having a roll at its end, of a non-rotatable shaft spaced above the rotary shaft, a roll movable upon its forward end, an adjustable hanger shaft, a hanger'thereon universally connected to said spaced shaft, and means connected to said shaft for vibrating the same, whereby the movable roll is moved toward and away from the roll on the rotary shaft, of said rolls.

17. In a machine of the kind described, the combination with a pair of rolls adapted to feed a strip of metal therebetween, of bearing surfaces upon opposite sides of said rolls and in a plane at right angles to the axes of said rolls and in alinement with the rear portions of said rolls.

18. In a machine of the character described, the combination with a plate having an opening therein, of a pair of rolls arranged in said opening, the plane of said plate being at right angles to the axes of said rolls, the surface of said plate being so positioned with reference to said rolls that a strip of metal passed between said rolls will contact with said plate, and bearing rollers arranged in said plate upon opposite sides of said rolls, the outer surface of said rollers being substantially flush with the face of said plate and in alinement with the rear portions of said rolls.

In testimony whereof, we hereunto aflix our signatures in the presence of two witnesses.

MICHAEL M. MoINTYR-E. CHARLES F. SGHULTIS. Witnesses:

J. E. KNAses, R. L. BRUCE.

I Copies of this patent'mey be obtained for five cents each, by'addressing the Commissioner of Patents,

Washington, D. G. 

